/*
 * Copyright 2013 Sigurd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.digiway.rapidbreeze.server.model.download;

/**
 * Listener interface for {@linkplain DownloadManager} status changes.
 */
public interface DownloadManagerListener {

    /**
     * Will be invoked if a new {@linkplain Download} was added to the manager
     *
     * @param download
     */
    public void onDownloadAdded(Download download);

    /**
     * Will be invoked if an existing {@linkplain Download} will be removed.
     *
     * @param download
     */
    public void onDownloadRemoved(Download download);

    /**
     * Will be invoked if any status change of any existing
     * {@linkplain Download} occurs.
     *
     * @param event
     */
    public void onDownloadStatusChange(DownloadEvent event);
}
